Home / 829,976,742.18-1,244,198,977.11-415,092,538.69

Finding the Fourth Proportional to 829,976,742.18, 1,244,198,977.11 and 415,092,538.69

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Solution

The fourth proportional to 829,976,742.18, 1,244,198,977.11 and 415,092,538.69 is: 622,255,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,976,742.18 : 1,244,198,977.11 = 415,092,538.69 : x
  2. Step 2: Convert to fraction form
    829,976,742.18/1,244,198,977.11 = 415,092,538.69/x
  3. Step 3: Cross multiply
    829,976,742.18x = 1,244,198,977.11 × 415,092,538.69
  4. Step 4: Simplify right side
    829,976,742.18x = 516,457,712,040,980,544
  5. Step 5: Solve for x
    x = 516,457,712,040,980,544/829,976,742.18
  6. Step 6: Final answer
    x = 622,255,643.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.